Found 'vanilla kernels' for Fedora, https://fedoraproject.org/wiki/Kernel_Vanilla_Repositories https://repos.fedorapeople.org/repos/thl/kernel-vanilla-stable/fedora-34/x86_64/ Installed from repo kernel-5.13.4-250.vanilla.1.fc34.x86_64.rpm kernel-devel-5.13.4-250.vanilla.1.fc34.x86_64.rpm kernel-modules-extra-5.13.4-250.vanilla.1.fc34.x86_64.rpm kernel-core-5.13.4-250.vanilla.1.fc34.x86_64.rpm kernel-modules-5.13.4-250.vanilla.1.fc34.x86_64.rpm then, re-gen'd init & re-booted Same issue as above ... long/slow boot, eventual hang. Again, drop back to 5.12.15, all's good. _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure